Enhancement of Hydrophobility and Thermal Property of Graphene Oxide by Paratoluidine Chemical Functionalization

Abstract:

Graphene oxide (GO) is typically synthesized by graphite powder under strong oxidizing reaction, possessing with the same set of functional groups: epoxy and hydroxyl in basal plane and carboxyl and hydroxyl groups existence on the flake edges which endow GO with amphipathy. GO and its functionalized derivatives have been successfully tested in many domains, such as polymer composites, biosensors, drug delivery systems, etc. In this paper, GO was prepared by a modified Hummers method employing improved process (preparation and separation), aiming at industrialization with the lowest cost. Moreover, some novel functional groups with different properties were controlled chemically grafted onto GO to modify the wettability and reaction activity with other materials. The hydrophobicity and the thermal property of graphene oxide were enhanced by chemical functionalization.

• Periodical: Materials Science Forum (Volumes 809-810)
• Pages: 243-247
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.809-810.243
• Online since: December 2014
• Authors: Zhi Jia Luo, Hong Zhang Geng*, Song Ting Zhang, Bao Tan Du, Xing Zhang, Jing Wang, Zhan Guo Lu, Su Jun Ma, Jin Qiu Zhang, Hai Jie Yang, Jie Wang
• Keywords: Graphene, Hydrophobility, Paratoluidine, Thermal Property

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